// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/views/window/client_view.h"

#include "base/logging.h"
#include "ui/accessibility/ax_view_state.h"
#include "ui/base/hit_test.h"
#include "ui/views/widget/widget.h"
#include "ui/views/widget/widget_delegate.h"

namespace views {

// static
const char ClientView::kViewClassName[] = "ui/views/window/ClientView";

///////////////////////////////////////////////////////////////////////////////
// ClientView, public:

ClientView::ClientView(Widget* widget, View* contents_view)
    : contents_view_(contents_view)
{
}

int ClientView::NonClientHitTest(const gfx::Point& point)
{
    return bounds().Contains(point) ? HTCLIENT : HTNOWHERE;
}

DialogClientView* ClientView::AsDialogClientView()
{
    return NULL;
}

const DialogClientView* ClientView::AsDialogClientView() const
{
    return NULL;
}

bool ClientView::CanClose()
{
    return true;
}

void ClientView::WidgetClosing()
{
}

///////////////////////////////////////////////////////////////////////////////
// ClientView, View overrides:

gfx::Size ClientView::GetPreferredSize() const
{
    // |contents_view_| is allowed to be NULL up until the point where this view
    // is attached to a Container.
    return contents_view_ ? contents_view_->GetPreferredSize() : gfx::Size();
}

gfx::Size ClientView::GetMaximumSize() const
{
    // |contents_view_| is allowed to be NULL up until the point where this view
    // is attached to a Container.
    return contents_view_ ? contents_view_->GetMaximumSize() : gfx::Size();
}

gfx::Size ClientView::GetMinimumSize() const
{
    // |contents_view_| is allowed to be NULL up until the point where this view
    // is attached to a Container.
    return contents_view_ ? contents_view_->GetMinimumSize() : gfx::Size();
}

void ClientView::Layout()
{
    // |contents_view_| is allowed to be NULL up until the point where this view
    // is attached to a Container.
    if (contents_view_)
        contents_view_->SetBounds(0, 0, width(), height());
}

const char* ClientView::GetClassName() const
{
    return kViewClassName;
}

void ClientView::GetAccessibleState(ui::AXViewState* state)
{
    state->role = ui::AX_ROLE_CLIENT;
}

void ClientView::OnBoundsChanged(const gfx::Rect& previous_bounds)
{
    // Overridden to do nothing. The NonClientView manually calls Layout on the
    // ClientView when it is itself laid out, see comment in
    // NonClientView::Layout.
}

void ClientView::ViewHierarchyChanged(
    const ViewHierarchyChangedDetails& details)
{
    if (details.is_add && details.child == this) {
        DCHECK(GetWidget());
        DCHECK(contents_view_); // |contents_view_| must be valid now!
        // Insert |contents_view_| at index 0 so it is first in the focus chain.
        // (the OK/Cancel buttons are inserted before contents_view_)
        AddChildViewAt(contents_view_, 0);
    }
}

} // namespace views
